Lock-controlled valve.



, L. D. BUTTON.

LOCK CONTROLLED VALVE.

APPLICATION men MAR.2. I917- 289,4 1 5 Patented Dec. 31, 1918.

' L11 Hui TEFL.

- qpoizzo n. BUTTON, or

To all whom it may concern:

Be it known: that I, Lonzo -D. DUTTON, a citizen of the United States,and a resident of Winfield, in the county of Cowley and State of Kansas,haveinvented a certain new and useful Improvement in Lock-ControlledValves, of which the following is a specification.

'The present invention relates to valves, and particularly to that typewhich are adapted to be locked in closed position to prevent theunauthorized flow of a fluid through the valve. j

An object of the present invention is to provide a lock-controlled valveof this character which is particularly adapted for motor vehiclesandthe like and adapted to be interposed between the supply tank and themotor to preventthe unauthorized use of the motor vehicle, and toprevent the withdrawing of the contents 'of the fuel tank by unauthorized persons. I

. Another object of the present invention is to provide a relativelysimply constructed valve of this nature which may be incorporated a-fuel supply line, and which may be operated or controlled by the use ofa relatively small key.

The invention still further aims at the rovision of a valve of thischaracter'which is so constructed that the adjustable and detachableparts thereof are eifectively housed in a strong casing towhich access.cannot be readily had.

Various other objects and advantages of this invention will be in partdescribed, and

' in part understood, from the following detailed description oftheresent preferred embodiment, the same belng illustrated in theaccompanying drawings wherein:

Figure 1 is a longitudinal section through a-lock-controlled valveconstructed according to the present invention, the same beinillustrated as applied to a fuel-supply an a device adapted to receivethe fuel.

Fig. 2 isv a top plan view of the same, the

' upper portion of the valve being shown in section on the'line 22 ofFig. 1;

Fig. 3 is a fragmentary enlarged transverse sectionalview taken throughFig. 1 on the line 3-3.

. Fig. 4 is a fragmentary section taken on the line 4-4 of Fig. 1. g

Fig. 5 is a plan view of a key which may be employed for operating thevalve.

Specification of Letters Patent.

Application filed March 2, 1917.

WILTFIELD, KANSAS, ASSIGNOR OF ONE-HALF T0 EDWARD M.

MARTIN, OF WINFIELD, KANSAS.

LOCK-GON'TROLLED VALVE.

Patented Dec. 31, 1918 Serial 1%. 152,115.

Referring to this drawing, wherein like parts are designated by similarcharacters of reference throughout the several views, A designates asource of fluid supply, such as a pipe, and B designates a deviceadapted to i-eiceive the fuel, such as a carbureter or the The valve ofthis invention comprises a casing or body-10 which is preferably ofspherical form, as disclosed, and which is made of steel or otherrelatively hard .substance. The valve casing 10 is provided with athrough port 11 which isco-extensive with the opposite end projections12 and 13 adapted to besecured in any suitable manner to the parts A andB. The casing 10 is provided upon its upper side with a cylindricalhollow projection 14 having an inturned flange 15 at its upper end. Theopening in the projection 14 is in the form of a counter-bore which isformed from the bottom upwardly through the valve body 10,

and is adapted to receive therein a rotatable locking pin 18 which isintroduced laterally through the projection 14 and engages through theadjacent side of the cylinder 17. The disk 16 is-provided at its centralportion with a diametrically extending key-hole or slot .19, and thecylinder 17 is provided with a plurality of guards 20 which project fromthe inner wall of the same.

The valve casing or bodylO is provided with a counter-bore at the lowerend of the large axial opening which tapers downwardly toward theopen'end of the body 10.

The-lower or outer end of the sleeve 21 is externally reduced to providean annular projection 22, and a turning plug 23 is fitted in the sleeve21 and is correspondingly tapered to fit snugly therein. A disk or plate24 is secured by means of a screw 25 to the reduced end of the turningplug'23 and overlaps at its marginal edge the cylindrical prfl ject'ion22 of the sleeve 21. The open end of the counter-bore in the casing 10is closed by a screw plug 26 which conforms at its exterior surface tothe spherical contour of the casing, and which has a concavity 2'? atits inner end to accommodate the plate 24 and the screw 25.

The upper end of the turningplug 23 is provided with a relatively deepdiametrically extending slot 28 arranged in axial alinement with thecylinder 1'? and the our: 16.

A gasket or washer29 is fitted in the inner end, of the counter-bore ofthe casing 1.0

and is held in position by the adjacent end of the sleeve 21, the latterbeing held rigidly against the washer 29 by the-annular upstanding flane 30 of the plug 26.

As shown in ig. 5, the key 31 employed is of' the double-bitted flattype and is provided in its opposite edges with two sets of kerfs 32 and33 adapted to receive therethrough the guards 20 when the key 31 isturned for registering the lower end of the blade of the key with theslot 28 of the turn.- ing plug 23, and for subsequently turning the keyafter the latter has been placed in the slot 28.

In operatiomit is only necessary to insert the key 31 through. the slot19 of the disk 16, and to turn the key with the disk 16 until the lowerend of the key blade passes between the transversely registering slotshetween each adjacent pair of theguards 20. It will be notedparticularlyiromlligs. and 3, that the'leuards 20 are arranged in the form ofquadrants with their adjacent edges closely spaced apart to provideintersecting diametrically extending passages or slots through which theblade may pass, it

will also be noted that the guards 20 are arranged in vertical ahnementn the present instance, although it 1s of course understood that variousarrangements and numbers of the guards 20 may be resorted'to,

vWhen the key blade is inserted, and it it does not register with the.slot 28 in the turning plus 23, the upper end of the turning: plug willhold the key from being further depressed. in this latter'position, thekeris 32' register with. the guards 20 and the key 31 with the disk 16may be turned in either aaaaeia were it not'f'or the kerfs 32, thelatter admitting the turning of the proper key in the.

barrel to register with the s lot 'lhe guards 20 are arranged inregistering groups of four each equi-distantly spaced in a circular rowandprovide a. pair of interseating longitudinal key ways in the barrelarranged at right angles to each other.- v 1 The key 31 maynow be turnedwith the 'disklG- and the turning plug 23 to rotate the latter through aquarter turn and open or close the through passage 11 in the casing 10,I

It will thus be seen that a key having a blade of the required thicknessmust be used, and that the key must have the kerfs 32 and 33 formedcorrespondingly to the number and the location of the guards 20 in thenonrotatable cylinder 17.

it .is of course understood that various changes and modifications maybe made in the details of constructionv of the above specificallydescribed valve and the locking means therefor without departing fromthe spirit of this invention, and being restricted only by the scope ofthe following 'claims.

I claim:

i. In a valve, the combination of an integral casing having theusualfiuidpassage therethrough and provided with a projection whose axislies at an angle to the fluid passage, thecasing'having a bore thereinextending into "the projection and coaxial therewith reduced at theouter'end of the.

projection for forming a retaining flange thereat and opening throughthe casing at the side opposite tothe projection, a barrel fitting inthehere of the projection against the flange and having a key. way thereinopening through the projection, a turning plug fitting; in the bore andhaving. a trans-- verse perforation adaptedto register with the fluidpassage and a key slot inlits end advJacent the barrel for retaining theend of a key inserted through thebarrel, and securing means in the openend of the'bore for sustaining the turning plug therein.

2, in a valve, the combination of a'casing provided with an integralprojection with a.

hero in'said projection and a counter-bore in the casing, a cylinderkey-way fitting through the casing in saidprojection andprovided withguards upon its inner wall, a

turning plug fitting in the counter-bore to control the passage-of fluidthrough the easint and provided with a key-receiving part adjacent saidcylindrical key-way, and'means for closing the outer end ofthe.counterbore to house said turning: plug and said cylin-- drical key-wayin the casing.

3, In. a valve, the combination of a casing provided with an integralhollow projection and a counter-bore at the inner end of the 7projection, a cylinder. fitting through the easing into the hollow proection and having means carried by the bushing for controlling thepassage of fluid through the casing, said turning plug being providedwith a key-receiving part adjacent to said projection, means carriedupon the turning plug for engagement with the bushing to hold theturning plug therein, and a closure for the outer end of saidcounter-bore to house the bushing and the turning plug in the casing.

4. In a valve adapted to be locked, the combination of a casing having alongitudinal fluid passage therein and a projection at one side, andhaving a transverse bore extending into the projection and intersectingthe passage, a barrel fitting in the projection and having a key waytherein, a washer bearing against said barrel, a bushing fitting inthebore and having a tapering opening therethrough, a turning plugfitting in the opening of the bushing and having a key slot in its endadapted to register with the key way in the barrel, means for retainingthevplug in the bushing, said plug and bush ing having transverse portstherethrough adapted to register with the fluid passage, and securingmeans in said bore of the easing engaging the bushing to hold it in thebore and in endwise engagement with said washer.

LONZO D. DUTTON.

